C++ Builder:

Visual C++ (MFC):

C# (.NET):

Summary

Docking location for video preview.

Description

Allows video preview windows from TVLDSCapture,
TVLDSVideoPlayer and some other DirectShow components to be
docked inside. The video preview feature is mainly used for
debug purposes, but may also be usefully for showing the
direct input from video capturing devices.

In Visual C++ you can instantiate the component by using the
Open method: